Python: Appending large number of elements to list, does memory usage double during resizing? -


let's assume i've empty python list , append elements it

sample_list = [] in xrange(2**36):    sample_list.append(str(i) + 'test')

python list internally array keeps re-sizing when becomes full. when resizing happening large array, how memory usage of process work, doubles?

it double several times, each time 1 of appends pushes used space past threshold resizing. more efficient use 1 call extend:

sample_list.extend([str(i) + 'test' in xrange(2**36)])

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